Finding the Fourth Proportional to 16,441.76, 24,641.88 and 10,516.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,441.76 : 24,641.88 = 10,516.40 : x
2. Step 2: Convert to fraction form
   16,441.76/24,641.88 = 10,516.40/x
3. Step 3: Cross multiply
   16,441.76x = 24,641.88 × 10,516.40
4. Step 4: Simplify right side
   16,441.76x = 259,143,866.83
5. Step 5: Solve for x
   x = 259,143,866.83/16,441.76
6. Step 6: Final answer
   x = 15,761.32